Commit 78a42ce8 authored Dec 14, 2008 by FUJITA Tomonori Committed by James Bottomley Mar 12, 2009

[SCSI] osst: make all the buffer the same size



This simiplifies the buffer management; all the buffers in osst_buffer
become the same size. This is necessary to use the block layer API (sg
driver was modified in the same way) since the block layer API takes
the same size page frames instead of scatter gatter.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Willem Riede <osst@riede.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

parent 68274794

drivers/scsi/osst.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -5286,11 +5286,6 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
		struct page *page = alloc_pages(priority, (OS_FRAME_SIZE - got <= PAGE_SIZE) ? 0 : order);
		STbuffer->sg[segs].offset = 0;
		if (page == NULL) {
		if (OS_FRAME_SIZE - got <= (max_segs - segs) * b_size / 2 && order) {
		b_size /= 2; /* Large enough for the rest of the buffers */
		order--;
		continue;
		}
		printk(KERN_WARNING "osst :W: Failed to enlarge buffer to %d bytes.\n",
		OS_FRAME_SIZE);
		#if DEBUG

Admin message